Global variables not getting initialised in vac 8 xlC compiler

[mukundan.narayanan]

cat mystring.cpp
#include <iostream>
#include <string>
using namespace std;


string mystring ("ABC");

int main()
{
cout <<"value of string is "<<mystring<<endl;
}

The above program when compiled using the vac 8 xlC ,c++ compiler does
not seem to initialise the global variable mystring. any clues on
whats happening? should some flags be included

$ xlC -o mystring mystring.cpp /usr/lib/libC.a
$ ./mystring
value of string is
$

The same program when compiled on a vac 7 xlC compiler works fine!
$xlC -o mystring mystring.cpp /usr/lib/libC.a
$ ./mystring
value of string is ABC
$

 

[Victor Bazarov]

cat mystring.cpp
#include <iostream>
#include <string>
using namespace std;


string mystring ("ABC");

int main()
{
cout <<"value of string is "<<mystring<<endl;
}

The above program when compiled using the vac 8 xlC ,c++ compiler does
not seem to initialise the global variable mystring. any clues on
whats happening? should some flags be included

We cannot help you with flags. They are compiler-specific and are not
part of C++ language definition.

$ xlC -o mystring mystring.cpp /usr/lib/libC.a
$ ./mystring
value of string is
$

The same program when compiled on a vac 7 xlC compiler works fine!
$xlC -o mystring mystring.cpp /usr/lib/libC.a
$ ./mystring
value of string is ABC
$

It sounds like a very serious defect in the compiler. You should
contact the technical support right away.

V